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US 2003/0226584 A1Published application
Walker with release mechanism
AssigneeDr. K Healthcare Products, Inc.
InventorMichael Serhan
Life of this patent
Estimating the term…
Abstract
A foldable walker having a paddle shaped lever arranged to interact with locking pins by lateral movement in either direction. In a particular embodiment, the walker has at least two locking positions wherein the walker can hyper-extend, spreading out and locking to a more fully opened configuration, allowing the walker to be pulled closer to the patient making it easier for the patient to lift himself or herself up to a standing position.
Claims18
A foldable walker, comprising:
- front legs defining a front frame;
- rear legs defining side frames with the front legs, the side frames being pivotally connected to the front frame for rotation relative to the front frame;
- locking mechanisms at said pivotal connections, each locking mechanism arranged to lock a side frame to the front frame in an open position;
- and
- levers connected to respective locking mechanisms and arranged so that lateral movement of the levers releases the side frames to allow the walker to fold by rotation of the side frames to close with the front frame.
2 more elements
A foldable walker, comprising:
- front legs defining a front frame;
- rear legs and upper members defining side frames with the front legs, the side frames being pivotally connected to the front frame for rotation relative to the front frame;
- locking mechanisms at said pivotal connections, each locking mechanism comprising a housing containing a locking pin pivotally connected to the lever to be movable by the lever, the lever being pivotally connected to the housing adjacent the end of the locking pin proximal to the lever, each of the front legs being formed with at least one aperture to receive the distal end of the locking pin, the aperture being located at a radial angle with respect to the front frame whereby to define an open position of the walker and to lock a side frame to the front frame in the open position, the locking pin having a plate adjacent its distal end and a spring bearing on said plate to spring load the locking pin to its locking position;
- and
- paddle shaped levers connected to respective locking mechanisms and arranged so that lateral movement of the levers in either direction withdraws the locking pin from the respective aperture to release the side frames to allow the walker to fold by rotation of the side frames to close with the front frame.
2 more elements
Dependencies are inferred from the claim text.